Gamophyceae:
Zygnematales: Desmidiaceae or Closteriaceae
Closterium rostratum
Ehrenberg ex Ralfs 1848
Species: Cell body medium in size, slightly curved, central region spindle-shaped, both side convex,
both termini slightly swelled, with slanted edges (cf. C. ralfsii),
190-(320-400)-530 μm long, 18-(29-33)
μm wide, L/W=11-16; cell wall striated (10 lines within 10 μm), brownish in color;
chloroplasts with 3 laminae, 3-5 pyrenoids in each semicell
(Illustrations of The Japanese Fresh-water Algae, 1977).
|
Closterium rostratum Ehrenberg,
cell body about 280 μm long, 36 μm wide, L/W=7.8,
x 400, x 640, No.6, Mizunashi-Yachi, Komado marsh (No.13), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Closterium rostratum,
cell body 290 μm long, 28 μm wide, L/W=10.4,
x 640, No.6, Mizunashi-Yachi, Komado marsh (No.13), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Cell body 310 μm long, 28 μm wide, L/W=11.1, x 640
Cell body 260 μm long, 28 μm wide, L/W=9.3, x 640
Images of collecting locality:
No.6, Mizunashi-Yachi, Komado marsh (No.13), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii
Please click on images for viewing enlarged.
Copyright
Protist Information Server